Hospitalized farm injuries in Canada, April 1990 to March 1995, by primary diagnosis and age group
| Machinery | Non-machinery | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Age group (% of column) | Age group (% of column) | ||||||||||
| Diagnostic code* | Description of diagnostic code | Injuries | 0–14 (n=513) | 15–59 (n=2558) | 60+ (n=971) | p Value † | Injuries | 0–14 (n=581) | 15–59 (n=2780) | 60+ (n=860) | p Value † |
| *Based on the nature of injury code from ICD-9-CM.25 | |||||||||||
| †p Value: Mantel-Haenszel test for differences in proportions between age groups with adjustment for sex.26 | |||||||||||
| Note: direct comparisons of machinery and non-machinery injury counts should be avoided due to differential rates of case identification. | |||||||||||
| 800–804 | Fracture: skull | 100 | 4.5 | 2.3 | 1.9 | 0.005 | 180 | 5.0 | 4.8 | 2.2 | 0.003 |
| 805–809 | Fracture: spine and trunk | 358 | 4.7 | 7.7 | 14.1 | 0.001 | 353 | 1.0 | 8.5 | 12.8 | 0.001 |
| 810–819 | Fracture: upper limb | 636 | 19.3 | 16.5 | 11.7 | 0.001 | 445 | 23.4 | 9.0 | 7.0 | 0.001 |
| 820–829 | Fracture: lower limb | 568 | 15.6 | 14.2 | 13.0 | 0.469 | 637 | 9.6 | 14.6 | 20.5 | 0.001 |
| 830–839 | Dislocation | 82 | 0.8 | 2.3 | 2.1 | 0.104 | 147 | 1.0 | 4.1 | 3.3 | 0.001 |
| 840–848 | Sprains/strains of joints and adjacent muscles | 104 | 0 | 2.8 | 3.4 | 0.001 | 289 | 0.9 | 7.9 | 7.6 | 0.001 |
| 850–854 | Intracranial injury, excluding those with skull fracture | 170 | 10.5 | 3.4 | 2.9 | 0.001 | 353 | 17.2 | 6.9 | 7.1 | 0.001 |
| 860–869 | Internal injury of chest, pelvis, and abdomen | 125 | 3.3 | 2.7 | 3.9 | 0.214 | 128 | 2.8 | 3.1 | 3.1 | 0.875 |
| 870–879 | Open wound: head, neck, and trunk | 120 | 5.3 | 2.6 | 2.8 | 0.003 | 112 | 5.3 | 2.5 | 1.4 | 0.001 |
| 880–887 | Open wound: upper limb | 655 | 10.5 | 17.6 | 15.6 | 0.001 | 153 | 2.1 | 4.5 | 1.9 | 0.001 |
| 890–897 | Open wound: lower limb | 225 | 6.6 | 6.1 | 3.7 | 0.009 | 121 | 3.4 | 3.0 | 2.2 | 0.316 |
| 900–904 | Injury to blood vessels | 12 | 0.2 | 0.3 | 0.3 | 0.946 | 9 | 0 | 0.3 | 0.2 | 0.514 |
| 910–919 | Superficial injury | 30 | 1.6 | 0.7 | 0.5 | 0.272 | 40 | 1.6 | 0.9 | 0.8 | 0.250 |
| 920–924 | Contusion with intact skin surface | 202 | 5.5 | 4.5 | 6.2 | 0.083 | 261 | 4.1 | 6.2 | 7.4 | 0.022 |
| 925–929 | Crushing injury | 196 | 4.7 | 5.3 | 3.8 | 0.159 | 35 | 0.5 | 1.0 | 0.4 | 0.104 |
| 940–949 | Burns | 50 | 0.6 | 1.6 | 0.6 | 0.022 | 176 | 6.4 | 3.9 | 3.6 | 0.003 |
| 950–957 | Injury to nerves and spinal cord | 30 | 0.6 | 0.7 | 0.9 | 0.655 | 18 | 0.2 | 0.5 | 0.2 | 0.303 |
| 958–959 | Certain traumatic complications and unspecified injuries | 188 | 3.1 | 4.7 | 5.5 | 0.084 | 161 | 2.6 | 4.0 | 4.1 | 0.261 |
| Other | 190 | 2.7 | 4.2 | 7.1 | 0.001 | 596 | 12.9 | 14.4 | 14.2 | 0.857 | |
| Missing | 1 | 0 | 0 | 0.1 | 0.231 | 1 | 0 | 0.2 | 0.1 | 0.509 | |
| Total | 4042 | 4221 | |||||||||